CN211093941U - Endoscope catheter, assembly and endoscopic visible paranasal sinus balloon dilatation system - Google Patents
Endoscope catheter, assembly and endoscopic visible paranasal sinus balloon dilatation system Download PDFInfo
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- CN211093941U CN211093941U CN201921771931.6U CN201921771931U CN211093941U CN 211093941 U CN211093941 U CN 211093941U CN 201921771931 U CN201921771931 U CN 201921771931U CN 211093941 U CN211093941 U CN 211093941U
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Abstract
The utility model provides an endoscope catheter, an endoscope assembly and a visible paranasal sinus sacculus dilatation system under an endoscope, which relate to the technical field of medical instruments, wherein the endoscope catheter comprises an endoscope catheter main body; the endoscope catheter main body comprises a catheter front end part and a catheter rear end part, one end of the catheter front end part is connected with one end of the catheter rear end part, and the catheter front end part and the catheter rear end part are arranged at a fixed angle. The utility model provides an endoscope pipe's tip forms fixed angle before the pipe and tip behind the pipe, gets into more easily in crooked nasal cavity chamber, especially when looking for the sinus ostium that is blocked by the uncinate process, through the position of artificial adjustment endoscope pipe in vitro, can have bigger pivoted angle.
Description
Technical Field
The utility model belongs to the technical field of medical instrument's technique and specifically relates to a visual sinus sacculus expansion system under endoscope pipe, subassembly and endoscope.
Background
The use of endoscopes for medical diagnosis has been widely used in the medical field. The endoscope can conveniently inspect the internal structure of the cavity through the narrow natural cavity of the human body, is an important means for diagnosis, and can also carry out fine treatment on the cavity through matched surgical instruments, so that the operation can reach the area which can not be reached by the traditional operation.
For example, in the diagnosis of nasal cavity-related diseases, it is necessary to insert a tube of an endoscope into a nasal cavity of a patient for examination, and even to perform surgical treatment endoscopically.
The existing nasal endoscope has the following defects:
1. for a bendable endoscope, the outer diameter of the endoscope tube is too large, and the bending radius is large, so that the endoscope cannot be observed at a part needing to be turned by a large angle, such as a maxillary sinus ostium.
2. With the existing inflexible endoscope, it is impossible to observe tissues blocked by the proximal end such as the ostium of the maxillary sinus blocked by the uncinate process.
3. For an endoscope capable of observing tissues under an inflexible endoscope, the purpose of observation can be generally achieved, and no instrument cavity for sampling or treatment exists in the endoscope, so that sampling or treatment cannot be carried out. Some operations can be performed by inserting instruments for sampling or treatment under the visual field of an endoscope, but the endoscope and the instruments are easy to interfere with each other during the operation, and the operation is inconvenient. When the instrument passes through a narrow passage such as a sinus ostium, the condition of the front end of the operated instrument, such as tissues in the sinus cavity, cannot be observed in real time, and only the operation of the rear end of the instrument can be seen, and the instrument is basically in a state of full-blind operation or semi-blind operation.
4. The existing endoscope can only be reused after simple disinfection.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a visual sinus sacculus expansion system under endoscope pipe, subassembly and the endoscope to solve the technical problem in the difficult crooked nasal cavity chamber of entering of present endoscope pipe says.
The utility model provides an endoscope catheter, which comprises an endoscope catheter main body; the endoscope catheter main body comprises a catheter front end part and a catheter rear end part, one end of the catheter front end part is connected with one end of the catheter rear end part, and the catheter front end part and the catheter rear end part are arranged at a fixed angle.
The device further comprises a light beam tube, wherein one end of the light beam tube is connected with the rear end part of the guide tube, and the other end of the light beam tube is provided with a joint for connecting a light source;
and an optical fiber is arranged in the inner wall of the endoscope catheter main body, one end of the optical fiber is positioned at the front end of the front end part of the catheter and used for illumination, and the other end of the optical fiber is connected with the joint through the light beam tube.
Further, at least one channel for the endoscope to pass through is arranged in the inner wall of the endoscope guide pipe body, and the channel extends from one end of the endoscope guide pipe body to the other end;
an instrument operation channel is further arranged on the endoscope guide pipe main body and extends from one end of the endoscope guide pipe main body to the other end;
and a handheld part is arranged at one end of the rear end part of the catheter, which is far away from the front end part of the catheter.
Further, the optical fiber is a plurality of, and a plurality of optical fibers are arranged in order along the circumference of the front end of the catheter front end portion.
Further, the front end of the conduit is arranged at an angle of 70-150 degrees to the rear end of the conduit.
Further, the catheter front end portion is disposed at any one of an angle of 70, 90 °, 110 ° and 150 ° with the catheter rear end portion.
The utility model also provides an assembly, which comprises an endoscope main body and the endoscope guide pipe; the endoscope main body and the endoscope guide pipe can be detachably arranged; the endoscope main body comprises an endoscope front end part, an endoscope tube and a converter, wherein one end of the endoscope tube is connected with the endoscope front end part, the other end of the endoscope tube is connected with the converter, and the converter is used for being connected with a host.
Furthermore, a light source for illumination and a camera for shooting are arranged in the front end part of the endoscope; the endoscope main body further comprises a mobile power supply, and the mobile power supply is connected with the endoscope tube and used for providing electric energy for the light source.
Further, the converter also comprises a host, wherein the converter is connected with the host; or, the host is provided with a connecting wire, and the connecting wire is connected with the converter.
The utility model also provides a visible sinus sacculus dilating system under the endoscope, which comprises a sinus sacculus conduit and the components;
the sinus sacculus catheter comprises an outer tube, an inner tube, a sacculus and a connecting device, wherein one end of the outer tube is connected with the sacculus, and the other end of the outer tube is connected with the connecting device; the inner tube penetrates through the outer tube and the balloon, one end of the inner tube penetrates through the balloon to form a tip, the other end of the inner tube is connected with the connecting device, and an expansion channel for expanding the balloon is formed between the inner surface of the balloon and the outer surface of the inner tube and between the inner surface of the outer tube and the outer surface of the inner tube; the connecting device comprises a first interface and a second interface, the first interface is communicated with the inner tube, and the second interface is communicated with the expansion channel; the inner tube can form a lumen for passage of an endoscope body, and the tip can be inserted into a lumen of the endoscope catheter.
The utility model provides an endoscope pipe's tip forms fixed angle before pipe and tip behind the pipe, compares in the endoscope pipe of linear type, and tip forms the endoscope pipe of certain angle behind pipe front end portion and the pipe, gets into crooked nasal cavity chamber in the way more easily, especially when looking for the sinus ostium of maxillary sinus that is blocked by the hook process, through the position of artificial adjustment endoscope pipe in vitro, can have bigger turned angle, and endoscope pipe finds more easily and gets into the sinus ostium.
The endoscope main body and the endoscope guide pipe of the assembly provided by the utility model are respectively and independently arranged, the endoscope guide pipe can be used for one time, and the risk of cross infection is reduced; compared with a disposable endoscope, the cost is greatly reduced.
The utility model provides a visual sinus sacculus expansion system under endoscope utilize behind the sufficient liquid in the sacculus, the light that the subassembly produced utilizes liquid refraction to the sinus intracavity to supply the luminance in the sinus intracavity of dark, conveniently follow the clear observation of endoscope that the most advanced stretches out the interior tissue of sinus intracavity.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an endoscope catheter according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the tip A of the endoscope catheter shown in FIG. 1;
fig. 3 is a schematic structural diagram of an assembly provided in an embodiment of the present invention;
FIG. 4 is a schematic view of the front end B of the assembly shown in FIG. 3;
FIG. 5 is another schematic view of the front end B of the assembly of FIG. 3;
fig. 6 is another schematic structural diagram of an assembly provided in an embodiment of the present invention;
fig. 7 is a schematic structural view of a sinus balloon catheter of the endoscopic visual sinus balloon dilation system according to an embodiment of the present invention.
Icon: 100-catheter front end; 200-the rear end of the catheter; 300-a beam tube; 400-a linker; 500-a hand-held portion; 600-an optical fiber; 700-channel; 800-endoscope front end; 900-a mirror tube; 110-a converter; 120-a host; 130-a mobile power supply; 140-a camera; 150-a light source; 160-connecting lines; 170-balloon; 180-inner tube; 190-an outer tube; 210-a connecting means; 220 — a first interface; 230-a second interface; 240-instrument manipulation channel.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the present invention provides an endoscope catheter, including an endoscope catheter main body; the endoscope catheter body includes a catheter front end portion 100 and a catheter rear end portion 200, one end of the catheter front end portion 100 is connected to one end of the catheter rear end portion 200, and the catheter front end portion 100 and the catheter rear end portion 200 are disposed at a fixed angle.
In some embodiments, the catheter leading end portion 100 and the catheter trailing end portion 200 of the endoscope catheter body are disposed at a fixed angle; the endoscope conduit can have an outer diameter of 3.5mm-4.8mm, an inner diameter of 2.5mm-3.3mm, and a length of 150mm-400 mm.
When the front end portion 100 of the catheter is disposed at a fixed angle to the rear end portion 200 of the catheter, as shown in fig. 1 α, it is easier to insert into a curved nasal cavity, especially when searching for a sinus ostium blocked by a hook process, by manually adjusting the rear end portion 200 of the catheter in vitro to change the position of the front end portion 100 of the catheter, so that the position of the front end portion 100 of the catheter has a wide range of variation.
As shown in fig. 2, based on the above embodiment, further comprising a light beam tube 300, wherein one end of the light beam tube 300 is connected to the rear end portion 200 of the catheter, and the other end is provided with a connector 400 for connecting to the light source 150; an optical fiber 600 is arranged in the inner wall of the endoscope catheter main body, one end of the optical fiber 600 is positioned at the front end of the catheter front end part 100 and used for illumination, and the other end of the optical fiber 600 is connected with the joint 400 through the light beam tube 300.
In some implementations, the light beam tube 300 is connected to the catheter back end 200, and the optical fiber 600 has one end located at the front end of the catheter front end 100 for illumination and the other end connected to the connector 400, the connector 400 being used for connecting to a cold light source; the light of the cold light source is conducted to the catheter tip portion 100.
The cold light source is excited by chemical energy, electric energy and biological energy.
Based on the above embodiment, further, at least one channel 700 for endoscope to pass through is arranged in the inner wall of the endoscope catheter main body, and the channel 700 extends from one end of the endoscope catheter main body to the other end; an instrument operation channel 240 is also arranged on the endoscope catheter body, and the instrument operation channel 240 extends from one end of the endoscope catheter body to the other end; a handle 500 is provided at an end of the catheter rear end portion 200 remote from the catheter front end portion 100.
In some embodiments, one channel 700 for endoscope passage is provided on the inner wall of the endoscope catheter body, and two channels 700 for endoscope passage may also be provided; in order to facilitate the endoscope to observe the affected part, a plurality of channels 700 are arranged on the inner wall of the endoscope catheter main body, and four channels 700 for the endoscope to pass are generally arranged, so that the operation state of the instrument can be conveniently and clinically checked from different angles.
Based on the above embodiment, further, the optical fiber 600 is plural, and the optical fibers 600 are sequentially arranged along the circumferential direction of the distal end of the catheter distal end portion 100.
A plurality of optical fibers 600, one end of each of the plurality of optical fibers 600 being disposed at the tip of the catheter tip 100 for one, two or even more weeks; a single turn of the optical fiber 600 is typically provided at the forward end of the catheter tip 100 to satisfy most of the requirements.
One end of each of the plurality of optical fibers 600 is fixed to the distal end of the catheter distal end portion 100, and the other end thereof enters the light beam tube 300 along the endoscope catheter body to form an optical fiber bundle; the fiber bundle is connected to a cold light source through a connector, and light from the cold light source is guided to the front end of the catheter tip 100 through the fiber bundle for auxiliary illumination.
The optical fiber 600 has a diameter of 0.2mm to 1.5mm, and is disposed at the front end of the catheter tip portion 100 along the circumferential direction for one or more circles to increase the brightness.
Based on the above embodiment, further, the front end 100 of the catheter is disposed at an angle of 70 ° to 150 °, preferably 70 °, 90 °, 110 °, 150 °, with respect to the rear end 200 of the catheter.
In some embodiments, the catheter front end 100 is positioned 70 ° -150 ° from the catheter rear end 200, i.e., α is 70 ° -150 °, preferably 70 °, 90 °, 110 °, 150 ° in fig. 1. compared to prior art endoscopes which have a lens at a different angle at the front end, it is easier to access the curved nasal cavity, especially when looking for the sinus ostium of the maxillary sinus obstructed by the uncinate process, and the actual angle that can be rotated is more than 30 ° by manually adjusting the position of the endoscope catheter, e.g., a fixed angle of 150 °, outside the body.
The endoscope body is easier to find and enter the sinus ostium and the endoscope body itself establishes the channel 700 to facilitate subsequent instruments entering the sinus ostium and other target sites from the endoscope body.
Compared to the disadvantages of the bendable endoscope, such as the large outer diameter of the tube 900, the large bending radius, and the small instrument operation channel 240, the endoscope main body has the smaller outer diameter of the tube 900 and the larger instrument operation channel 240 to enter the thinner channels of the nasal cavity.
As shown in fig. 3-6, the present invention provides an assembly comprising an endoscope main body and the above-mentioned endoscope guide tube; the endoscope main body and the endoscope guide pipe can be detachably arranged; the endoscope main body comprises an endoscope front end part 800, an endoscope tube 900 and a converter 110, wherein one end of the endoscope tube 900 is connected with the endoscope front end part 800, the other end of the endoscope tube 900 is connected with the converter 110, and the converter 110 is used for connecting a host computer 120.
In some embodiments, the assembly includes an endoscope catheter and an endoscope body, the endoscope body and the endoscopist catheter being detachably disposable; the endoscope front end of the endoscope main body can be inserted into the channel 700 of the endoscope conduit or directly inserted into the instrument operation channel 240 of the endoscope conduit, or the endoscope tube 900 of the endoscope can be inserted into the interior of the instrument, such as a guide wire cavity inside the balloon 170 conduit, and enters the endoscope conduit through the instrument operation channel 240, so that the combination of the endoscope main body and the endoscope conduit is realized.
The endoscope 900 of the endoscope main body has one end connected to the endoscope distal end portion 800 and the other end connected to the endoscope switch 110, and the switch 110 is provided with an endoscope interface and connected to the main unit 120 through the endoscope interface.
The endoscope main body and the endoscope guide pipe can be separated, the endoscope guide pipe is a disposable endoscope guide pipe, the endoscope guide pipe is discarded after operation, a brand new endoscope guide pipe is replaced for next use, and a new assembly is formed with the endoscope main body, so that the occurrence probability of cross infection of the endoscope is reduced.
Based on the above embodiment, the endoscope front end portion 800 is further provided with the light source 150 for illumination and the camera 140 for image pickup.
A light source 150 and a camera 140 for imaging are provided at the endoscope distal end portion 800; existing small diameter optical fiber 600 endoscopes typically have a diameter of less than 1mm, typically provide a dark light source 150, a low camera 140 pixels, and the images seen by the endoscope are typically not sharp enough. The light source is supplemented by the optical fiber 600 introduced into the endoscope catheter, so that images can be seen more clearly.
As shown in fig. 4 and 5, the camera 140 of the endoscope main body is an optical lens, and the light source 150 is an optical fiber, which has the advantage that the whole endoscope main body can be made thinner, and the diameter can be 0.5mm-0.8 mm.
Based on the above embodiment, further, the endoscope further includes a mobile power source 130, and the mobile power source 130 is connected to the mirror tube 900 and is used for providing electric energy for the light source 150.
The mobile light source 150 may be a battery or a dry cell; the mobile power supply 130 supplies power to the light source 150.
Based on the above embodiment, further, the converter further includes a host 120, the converter 110 is connected to the host 120, or the host 120 is provided with a connection line 160, and the connection line 160 is connected to the converter 110.
As shown in fig. 3, when the host 120 is a portable host 120, the portable host provides display, video recording, photographing, storage, signal processing, signal conversion and required power, the power of the camera 140 and the light source 150 is provided by the mobile power source 130, the mobile power source 130 generates the light source 150 through the photoelectric converter 110, the light source 150 is conducted to the front end of the endoscope through an optical fiber, so that the front end of the endoscope forms the light source 150 for illumination, and the light source 150 is formed by conducting light through the optical fiber.
As shown in fig. 6, when the host 120 is a non-portable host 120, the endoscope interface disposed on the converter 110 is connected to the socket end of the host 120 via the connection line 160, the socket end of the host 120 is connected to the host 120 via the photoelectric conduit, and the host 120 provides all electric energy for display, video recording, photographing, storage, signal processing, signal conversion, and signal conversion.
As shown in fig. 7, the present invention further provides an endoscopic visual sinus balloon dilation system, comprising a sinus balloon catheter and the above-mentioned components;
the sinus balloon catheter comprises an outer tube 190, an inner tube 180, a balloon 170 and a connecting device 210, wherein one end of the outer tube 190 is connected with the balloon 170, and the other end of the outer tube is connected with the connecting device 210; the inner tube 180 penetrates the outer tube 190 and the balloon 170, one end of the inner tube 180 penetrates the balloon 170 and forms a tip, the other end of the inner tube 180 is connected with the connecting device 210, and an expansion channel 700 for expanding the balloon 170 is formed between the inner surface of the balloon 170 and the outer surface of the inner tube 180 and between the inner surface of the outer tube 190 and the outer surface of the inner tube 180; the connection device 210 comprises a first port 220 and a second port 230, the first port 220 is communicated with the inner tube 180, and the second port 230 is communicated with the expansion channel 700; the inner tube 180 can form a lumen for passage of an endoscope body, and the tip can be inserted into a lumen of the endoscope catheter.
The first port 220 may be an irrigation port and the second port 230 may be a filling port.
In some embodiments, the sinus balloon catheter of the endoscopic visual sinus balloon dilation system can perform sinus balloon dilation by extending the sinus balloon catheter into a blocked sinus, such as a maxillary sinus, a frontal sinus, an ethmoid sinus, a sphenoid sinus ostium, to maintain patency of the ostium.
The inner cavity of the inner tube 180 can be used for the passage of the endoscope front end 800 and the scope tube 900 of the endoscope body; in use, one or more endoscope front end portions 800 are inserted into an endoscope catheter, and then a sinus balloon catheter is inserted into the lumen of the endoscope catheter, and after entering the target sinus ostium, the filling balloon 170 is inflated for 2 minutes and then the balloon 170 is deflated and removed.
During this process, the endoscope body can be advanced into the channel 700 of the endoscope catheter body to observe the operation of the balloon 170 and the inflated and expanded state of the balloon 170.
An endoscope body can also be used for extending out of the tip end through the cavity of the inner tube 180 of the nasal sinus sacculus conduit to probe the tissue in the nasal sinus cavity in real time. Particularly, since the endoscope catheter is located at the sinus ostium and is far away from the sinus cavity, light is difficult to enter the sinus cavity, and in order to make up for the weak point that the brightness of a pure endoscope main body is dark and not clear enough, after the balloon 170 is filled with liquid such as physiological saline, the light generated by the endoscope catheter is refracted into the sinus cavity through the liquid in the balloon 170, so that the brightness in the dark sinus cavity is supplemented, and the endoscope extending from the tip can observe the tissue in the sinus cavity clearly. The irrigation plastic catheter may then be advanced from the lumen of the endoscopic catheter and into the targeted sinus to irrigate and aspirate the irrigation fluid.
The whole process can be seen under the endoscope in the operation process and the flushing state, the purposes of sampling and treatment are fulfilled, and the checking and printing integrated function is realized. Meanwhile, the endoscope catheter lumen can be used as a guide wire and a guide catheter in the nasal sinus sacculus dilatation, thereby simplifying the surgical instruments and the operation steps of the nasal sinus sacculus dilatation. The endoscope guide pipe can be used once, and the occurrence probability of endoscope cross infection events is reduced.
The utility model provides a tip 100 and the pipe rear end 200 form the fixed angle of fixed angle before the pipe of endoscope pipe, get into more easily in crooked nasal cavity chamber way, especially when looking for the maxillary sinus ostium that is blocked by the uncinate process, through the position of artificial adjustment endoscope pipe in vitro, can have bigger pivoted angle.
The endoscope catheter is easier to find and enter the sinus ostium, and the endoscope catheter itself establishes the instrument operation channel 240, facilitating subsequent instruments to enter the sinus ostium and other target sites from the instrument operation channel 240 of the endoscope catheter.
The endoscope main body and the endoscope guide pipe of the assembly provided by the utility model are respectively and independently arranged, the endoscope guide pipe can be used for one time, and the risk of cross infection is reduced; compared with a disposable endoscope, the cost is greatly reduced.
The utility model provides a visual sinus sacculus expansion system under endoscope utilize behind being full of liquid in the sacculus 170, the light that the endoscope pipe produced utilizes liquid refraction to the sinus intracavity to supply the luminance in the sinus intracavity of dark, conveniently follow the clear observation of the endoscope that the most advanced stretches out the interior tissue of sinus intracavity.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An endoscope catheter characterized by comprising an endoscope catheter main body; the endoscope catheter main body comprises a catheter front end part and a catheter rear end part, one end of the catheter front end part is connected with one end of the catheter rear end part, and the catheter front end part and the catheter rear end part are arranged at a fixed angle.
2. The endoscope catheter of claim 1, further comprising a light beam tube, one end of which is connected to the rear end portion of the catheter and the other end of which is provided with a connector for connecting a light source;
and an optical fiber is arranged in the inner wall of the endoscope catheter main body, one end of the optical fiber is positioned at the front end of the front end part of the catheter and used for illumination, and the other end of the optical fiber is connected with the joint through the light beam tube.
3. The endoscope catheter of claim 1, wherein the endoscope catheter body has at least one channel disposed within an interior wall thereof for passage of an endoscope, the channel extending from one end of the endoscope catheter body to the other end;
an instrument operation channel is further arranged on the endoscope guide pipe main body and extends from one end of the endoscope guide pipe main body to the other end;
and a handheld part is arranged at one end of the rear end part of the catheter, which is far away from the front end part of the catheter.
4. The endoscope catheter according to claim 2, wherein the optical fiber is plural, and the plural optical fibers are arranged in order in a circumferential direction of a distal end of the catheter distal end portion.
5. The endoscopic catheter of claim 1 wherein said catheter front end portion is disposed at 70 ° -150 ° to said catheter rear end portion.
6. The endoscopic catheter of claim 1 wherein the catheter leading end portion is disposed at any one of an angle of 70, 90 °, 110 ° and 150 ° to the catheter trailing end portion.
7. An assembly comprising an endoscope body and an endoscope catheter according to any of claims 1-6; the endoscope main body and the endoscope guide pipe can be detachably arranged;
the endoscope main body comprises an endoscope front end part, an endoscope tube and a converter, wherein one end of the endoscope tube is connected with the endoscope front end part, the other end of the endoscope tube is connected with the converter, and the converter is used for being connected with a host.
8. The assembly of claim 7, wherein a light source for illumination and a camera for imaging are provided within the endoscope front end portion;
the endoscope main body further comprises a mobile power supply, and the mobile power supply is connected with the endoscope tube and used for providing electric energy for the light source.
9. The assembly of claim 7, further comprising a host, the converter being connected to the host;
or, the host is provided with a connecting wire, and the connecting wire is connected with the converter.
10. An endoscopically visible sinus balloon dilation system comprising a sinus balloon catheter and the assembly of any one of claims 7-9;
the sinus sacculus catheter comprises an outer tube, an inner tube, a sacculus and a connecting device, wherein one end of the outer tube is connected with the sacculus, and the other end of the outer tube is connected with the connecting device;
the inner tube penetrates through the outer tube and the balloon, one end of the inner tube penetrates through the balloon to form a tip, the other end of the inner tube is connected with the connecting device,
an expansion channel for expanding the balloon is formed between the inner surface of the balloon and the outer surface of the inner tube and between the inner surface of the outer tube and the outer surface of the inner tube;
the connecting device comprises a first interface and a second interface, the first interface is communicated with the inner tube, and the second interface is communicated with the expansion channel;
the inner tube can form a lumen for passage of an endoscope body, and the tip can be inserted into a lumen of the endoscope catheter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771931.6U CN211093941U (en) | 2019-10-21 | 2019-10-21 | Endoscope catheter, assembly and endoscopic visible paranasal sinus balloon dilatation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921771931.6U CN211093941U (en) | 2019-10-21 | 2019-10-21 | Endoscope catheter, assembly and endoscopic visible paranasal sinus balloon dilatation system |
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| CN211093941U true CN211093941U (en) | 2020-07-28 |
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| CN201921771931.6U Active CN211093941U (en) | 2019-10-21 | 2019-10-21 | Endoscope catheter, assembly and endoscopic visible paranasal sinus balloon dilatation system |
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Effective date of registration: 20201010 Address after: Room 301, Building No. 4, 188 Jialingjiang Road, Science and Technology City, Suzhou City, Jiangsu Province Patentee after: SUZHOU NANOS MEDICAL DEVICES Co.,Ltd. Address before: 215000 floor 4-3, North Zone, medical equipment science and Technology Industrial Park, No.188, Jialingjiang Road, science and Technology City, Suzhou high tech Zone, Jiangsu Province Patentee before: Ni Guansen Patentee before: Qian Yongwei Patentee before: Shi Chao |